Wringer



June 22, 1937. v N. L. ETTEN WRINGER s Sheets-Sheet i Filed July 19, 1933 N. L ETTEN June 22, 1937.

WRINGER Filed July 19, 1933 3 Sheets-Sheet 2 Inv- EH'ICR- N. L. ETTEN June 22, 1937.

WRINGER Filed July 19, 1933 3 Sheets-Sheet 3 Invznr :15.

Patented June 22, 1937 PATENT OFFICE WRINGER Nicholas L. Etten, Waterloo, Iowa, assignor to Chamberlain Corporation, Waterloo, Iowa Application July 19, 1933, Serial No. 681,072

7 Claims.

This invention relates to release mechanism for roll wringers and has for one of its objects the provision of roll tensioning means retained by a manually operable mechanism adapted, when operated, to release the tensioning means.

Another object is to provide a release mechanism operable from either side of the wringer.

Still another object is to provide a release mechanism operable by a simple movement of one of dual parallel bars disposed upon either side of the wringer frame.

A further object is to provide means for retaining the roll tensioning mechanism, the same having operable connection with stationary portions of the wringer frame and trigger means 4 for retaining the connecting means in engagement with the stationary frame portion and ,manual means for operating the trigger to release the retaining means from engagement whereby the roll tensioning means is released. Other objects will appear in the following description and accompanying drawings in which- Fig. 1 is a plan view of a roll wringer mechanism which embodies my invention; Fig. 2 is a side elevational view of the same;

Fig. 3 is a fragmentary sectional side elevational viewof the wringer mechanism showing parts to be described Fig. 4 is a view similar to that shown in Fig. 3

with certain parts removed to permit clearer View of underlying parts;

Fig. 5 is a view similar to that shown in Fig. 4 showing parts of the release mechanism in operated position;

Fig. 6 is a sectional plan view of the mechanism taken from line 66 in Fig. 4; Fig. 7 is a sectional plan view of the operated mechanism taken from line l--'! in Fig. 5;

Fig. 8 is a'perspective view of a link member which will be described;

Fig. 9 is an end elevational view of portions of the mechanism to be described, taken from line 99 in Fig. 3;

Fig. 10 is an end elevational view of portions of the mechanism to be described, taken from line -l0l0 in Fig. 4;

Fig. 11 is an open end elevational view of the wringer, frame and release mechanism taken from line lI-l.l in Fig. 2 at the end opposite that shown in Fig. 9, and

Fig. 12 is an enlarged fragmentary detail view showing frame attachment means to be described.

end of which is fitted a removable transverse top member l3. Water-shed aprons M are secured to the lower portion of frame ID as shown. The end frame members H and 12 are of hollow shell construction and are adapted to contain necessary bearings, gears and other mechanism for supporting and operating upper and lower rolls l5 and 16, roll l6 being supported, as best shown in Fig. 3, by bearing blocks ll' mounted in cradle members l8 which are 10 pivotally supported by means of pins l9 secured in end frame members I l and I2. At the right .hand end, Figs. 1 and 2, the shaft of roll l6 projects somewhat beyond the frame portion l l as at l6 for the purpose of coupling with driv- 15 ing means which will not be here described.

Upper roll I5 is supported in a vertically movable -manner by means of bearing blocks 20, Fig. 3,- which are slidably supported in frame members II and I2. Positive driving connection 7 between rolls l5 and I6 is provided by gears 24 secured to the shafts of the rolls and disposed within frame portion l2.

As indicated in Fig. 2, bearings 20 are adapted to receive the outer ends of a flat spring member 25 2| which is supported at its center, as shown, by a hand screw member 22 which is supported in member I3 by means of 'a threaded bracket 23.

It will be apparent that with top member I 3 disposed upon frame II) as indicated in Fig. 2, the central portion of spring 2| may be adjusted, by means of screw 22, to bring about tensioned pressure upon bearing blocks 20 to maintain upper wringer roll IS in pressure cOntact with lower roll I5. 5

It is to provide means whereby the top frame member l3-may be retained upon the wringer frame to maintain the roll pressure relation as noted, or to release the same to relieve the pressure contact between the rolls, that my invention 'is intended.

In practical use of a wringer mechanism of the type here considered, unexpected situations sometimes arise which necessitate sudden relief of the roll contact pressure. 5

For the purpose of accomplishing release of the tensioning means above noted in a quick and simple manner, I have provided mechanism which may be described as follows:

The left ha d end of member I 3 is removably retained upon frame upright l2 by means of a lip portion 25, best shown in Fig. 12. Lip 25 is formed in the body of upright I 2 and is'adapted to receive and retain the lower edge 26 of an opening 21 formed in the body of top member I3.

Escapement of edge 26 from lip 25 permits removal of the end of top frame member l3 from upright l2 as indicated in dotted lines in Fig. 12.

From the right hand end of top member |3 depends a U-shaped link member 28, shown in perspective in Fig. 8.

Figs. 4 and 5 indicate that member 28 is pivotally secured to member I3 by means of a pin 29 and is adapted to depend therefrom'within upright offrame ID with its side portions disposed adjacent the sides of the upright. The link is provided with notches 38 formed in the edges of its side portions and disposed approximately centrally thereof.

As indicated in Fig. 4, link 28 is so dimensioned and notches 38 are so disposed that when top frame member I3 is positioned upon upright II in tension retaining position, notches 38 may engage upon pin l8 to retain the parts in the relative position shown, however, the engaging portion of the notches is so formed that unless the link is retained by an external abutting means it will rotate upon pin 29 backwardly to escape from pin |9, the upward pressure of spring 2| being sufficient to overcome the unaided fastening provided by pin l9 engaged in the notches.

To retain link 28 in engaged position, I hav provided a lever member 3| indicated in Fig. 7. The lever comprises dual side portions 32 joined toform a unit by a connecting portion 33,. the latter being stiffened by a longitudinal flange portion 34 and provided upon its upper edge with plural angulated upstanding finger portions 35 which will be referred to shortly.

On the opposite edges of side' portions 32 are integrally formed inwardly extending angulated abutment bracket portions 36 and below these are inwardly extending portions 31, shown in Fig. 6.

Lever 3| is pivotally supported within upright by means of a pin 38 and is adapted to rotate thereon as indicated in Fig: 5.

As indicated in Fig. 8, the link 28 carries upon each leg outwardly extending flange portions 39, the lower. ends of which are disposed approximately opposite the engaging edges of notches 38.

Fig. 4 illustrates that pin l9, lower end of flanges 39, the upper ends of abutment members 36 and pin 34 are adapted to occupy a position of approximate dead center alignment in which position abutment members 36 are eifective to abut link 28 to retain it in engaging position relative to pin l8 and is thus effective, when retained in this position, to retain the roll tensioning mechanism in working position.

To retain lever 3| in the normal locked position, as-in Fig, 4, there is provided a lever member 48 having its lower end angulated to slidably rest upon an upright portion of frame H and its upper end adapted to rest against-a portion 31 of lever 3|, as indicated in IEig. 18. The lever is loosely retained in position upon a pin 4| which is loosely supported in the outer wall of frame II,.

as shown. A compression spring 42, retained upon pin 42, tensions lever 48 to hold portions 31o! lever 3| against the rearward edges of' link 28.

Fig. 5 illustrates that the mechanism just described may be displaced to rotate abutment portions 36 downwardly about center 38 to withdraw them from supporting position relative to link 28. With this support withdrawn, link 28 is free to escape pin l8 to permit its upward movement,

together with frame portion l3, in response to the tension pressure of spring 2|. This movement will be referred to shortly.

Means for operating the above described mechanism is provided by dual parallel hand rail mechanisms comprising, as best shown in Figs. 4, 6, 7 and 10, plate members 43 disposed adjacent the inner surfaces of frame portion H, as in Fig. 6. Fig. 4 indicates that these plateshave downwardly extending finger portions 44 adapted to engage upwardly extending finger portions 45 of lever 3|. I

Plates 43 are slidably supported on frame portion H by means of shoulderedrivets 46 which are slidably disposed in horizontal slots 41 formed in the side Walls of frame portion Rivets 46 also carry, adjacent the outer surface of frame portions ll, upright bracket members 48 which have outwardly extending portions adapted to receive vertically disposed pins49 by means of which bifurcated levers 58 are pivotally supported, the arrangement being perhaps best shown in Fig. 1.

Levers 58 are angularly disposed relative to the wringer frame as are similar levers 5| disposed at the opposite end of the frame. The latter levers are pivotally supported at 52 by brackets similar in form to brackets 48, but are securely attached to frame portion |2.

Joining levers 58 and 5| are parallel hand rails 53, pivotally attached to the levers by means of pins 54. Rails 53 are of channel construction, the flange portions of which are adapted to include the outer ends of levers 58 and 5| between them as shown. Extending end portions 55 of the levers are adapted to rest against the web portion of rails 53 in such a manner as to limit outwardpivotal movement of levers 58 and 5| upon centers 49 and 52.

Referring .to Figs. 4 and 5, it will be noted that spring 42 is effective, through levers 48 and 3|, already described, ,to urge plates 43 toward the left. Reference to Fig. 6 will make clear that with the plates in this position bracket members 48 are so placed that levers 58 and 5| together with hand rails 53 occupy the position shown in Figs. 1 and 6.

It will be apparent that with the parts in this position, if either of hand rails 53' is moved toward the wringer, either or both of levers 58 and 5| -will assume a position shown in Fig. '7, which movement will result in forcing the associated bracket 48 and plate 43 to the right, as is permitted by the described slidable mounting of the brackets.

Reference to Fig. 5 will indicate that the de-- scribed lateral movementof plates 43 will bring about pivotal movement of lever 3| by means of engagement of" fingers ll withefingers 45 as already described.

It is thought that the foregoing: has described the, structure and function of my roll wringer release mechanism in such a manner as to obviate more than a brief summary of its operation, as

follows:

With parts in positionasshown in Figs. 1, 2, 4 and 6, which would be the normal operating position, if immediate release of the roll pressure is desired, a comparatively slight push upon either of hand rails 53, applied at any point thereon, to move them toward the wringer will bring about co-operative movements of the mechanism to rotate lever 3| to-the position shown in Fig. 5, as a result of which movement link 28 will escape pin Is, as inducedby the tension pressure of spring 2|, to permit sudden upward movement at the end of transverse frame member l3, all as indicated in Fig. 5.

The disturbed movement of member l3 results in unhooking of the opposite end thereof from lip 25, whereby member l3 may assume the position indicated by dotted lines in Fig. 12.

Thus, a simple movement of the hand rails results in immediate release of the top frame member and removal of all tensioning pressure upon the rolls.

Replacement of the. top frame member is accomplished by first hooking edge 26 over lip 25 and then replacing the opposite end. The latter movement brings about operation of the mechanism as follows:

Fig. 5 illustrates the operated position of lever 3| when one of hand rails 53 is in operated position. Release of the hand rail permits spring 42 to rotate lever 3| counter-clockwise to place the extending portions 31 in contact with the back edges of link 28, thus urging the link to abut pin I9. Downward movement, of the link eventually places notch 30 adjacent the pin and simultaneously brings about contact of the lower ends of flange portions 39 with the abutment portions 36 to rotate lever 3| clockwise to place finger portions 35 in contact with the back edges of the links.

The several parts are so disposed that, at the time of contact of portions 35 with the link, the lower edge of slot 30 will have passed pin [9 at which time the link is permitted to move toward the right, Fig. 4, thus placing the ends of flanges 39 slightly beyond the reach of portion 36, allowing them to escape, under pressure of spring 42, to resume the relative position shown in Fig. 4,

in which position their action has already been explained. I

What I claim is:

1. A roll wringer mechanism comprising a lower frame, upper and lower rolls mounted therein, an upper-transverse frame member removably attached to said lower frame, pressure means for the rolls supported in the transverse member, means for retaining the transverse member in position upon the frame including a link member pivotally supported in the transverse member, the link adapted to releasably engage a stationary portion of the lower frame, means for retaining said link in engagement comprising a lever member adapted to be rotated into position to abut the link in engagement with said stationary portion or out of such position, sliding means adaptedto rotate said lever and hand rails mounted adjacent the wringer rolls adapted, when manipulated, to bring about movement of said sliding means.

2. A release mechanism for rollwringers comprising means for retaining the wringer rolls in pressure relation, hand rails disposed parallel and adjacent the wringer rolls, pivotally mounted supports for said rails, the supports at one end thereof being pivotally attached thereto and to the wringer frame, the supports at the opposite end thereof being pivotally attached to the rails and pivotally attached to sliding elements mounted upon the frame, said sliding elements adapted to slide relative to the frame when either of said hand rails are moved upon their pivotal supports, rockable means co-operative with the sliding elements adapted, when in normal position, to retain said roll tensioning means in,

operable position and spring means for holding the rockable means in operable position, the described mechanism cooperating insuch a manner that manual movement of said rails towards the wringer rolls brings about lateral movement of the sliding element to move the rockable'means ment thereof, comprising a link member pivotally attached to said upper frame member, a spring tensioned rockable member on said first mentioned frame for retaining the link in or out of locking engagement with an abutment member on the lower frame, a slide member on said first mentioned frame actuating said rockable member and a manually movable member on the frame for actuating said slide member.

4. In a roll wringer mechanism, the combination of a wringer frame, wringer rolls supported therein, a removable upper frame portion supported thereon, roll pressure means supported in the upper frame portion, means for retaining the roll pressure means in operative position or for releasement thereof, comprising a link member attached to said upper frame member mounted in said frame, a rockable member movable into position to abut said link member to retain the same inoperative position, and spring means for forcing said rockable element into abutting position, whereby movement of said rockable member out of abutting position will result in a release of pressure between said wringer rolls.

5. A wringer control mechanism comprising in combination a wringer mechanism, a supporting frame therefor, said frame having a removably attached upper transverse member adapted to sustain pressure elements for maintaining contact pressure between the rolls of the said wringer mechanism, means for retaining one end of the upper transverse member in operable position to sustain the said pressure elements comprising a U-shaped link member depending from one end of said transverse member and extending substantially to the base of said frame, means for retaining said link member in its lowermost position, said means including a hooking arrangement with an abutment on the lower frame, means for operating said hooking arrangement, means for retaining the opposite end of the transverse member comprising a lip formed integral with a portion of the supporting frame.

6 A wringer control mechanism comprising in combination a wringer mechanism, a supporting frame therefor, said frame having a removably attached upper transverse member adapted to sustain pressure elements for maintaining contact pressure between the rolls of the said wringer mechanism, means for retaining one end of the upper transverse member in operable position to sgstain the said pressure elements comprising, a U-shaped link member depending from one end of said transverse member and extending substantially to the base of said frame, means for retaining said link member in its lowermost position, said means including a hooking arrangement with an abutment on the lower frame disposed at least substantially half way down said formed integral with a portion of the supporting substantially to the base of said frame, the axles of said rolls passing between the arms of said U-shaped member, means for retaining said link member in its lowermost position, said means including a hooking arrangement with an abutment on the lower frame, means for operating said hooking arrangement, means for retaining the opposite end of the transverse member oomprising a lip formed integrally with a portion of the supporting frame.

NICHOLAS L. E'I'IEN. 

